2. There are two types of nasal polyp
Antrochoanal
Ethmoidal
3.
4. Antrochoanal type
It arises from the maxillary antrum and grows backwards in to
nose towards the choana and nasal cavity riches the nasopharynx .
5. Ethmoidal
They are multiple bilateral and arises from numerous ethmoidal
sinuses.
It is very commonly found
6. Etiology
ANTROCHOANAL POLYP-
Exact cause is not known.
AGE: usually it occurs in children and young adults.
NUMBER: usually it is single.
INFECTION and ALLERGY may result in ANTROCHOANAl
POLYP.
7. ETHMOIDAL POLYP
AGE; ethmoidal polyps occurs at any age
SEX: both sexes are equally affected
PREDISPOSING FACTOTRS:
Allergy
Vasomotor
Infection
Mixed infection
8. Polysaccharide changes
Bernouillis phenomenon: when air passes
through a narrow area in the nose negativre
pressure develops in the viscinity in the
paranasal sinuses leading to increased formation
of tissue fluids this may encourage polyp
formation.
9. Asthma can be associated with ethmoidal polyp.
Aspirin sensitivity
11. Pharyngeal part :enters the naso pharynx through choana.
ETHMOIDAL POLYP:
Arised from mucosa ethmoidal sinuses and hang down in the nasal
cavity .
18. Signs
External nose: Frog like appearance “BROAD NOSE”
Anterior rhinos copy:
antrochonal :rarely visible
Ethmoidal:multiple like n bunch of grapes
Posterior rhinoscopty
Antrochoanal :large visible like pear shaped
Ethmoidal :fairly visible and grow slowly
19.
20. Investigation
Nasal secretion : culture and sensitivity test
Radiography test of nose and sinuses.
Ct scan of nose and par nasal sinuses.
Biopsy of polyp